Tag Archives: nucleus and isotopes

Message in a dinosaur’s teeth

By Stephen Ornes / March 2, 2010
Preserved in the fossilized teeth of spinosaurs is chemistry hinting that the creatures (shown in an artist’s reconstruction) spent much of their time in the water, as crocodiles and hippos do today. Credit: M. Simonetti/courtesy of CNRS

Giant dino that was T. rex rival may have spent most of its time in the water

Posted in Dinosaurs & Fossils | Tagged ,